SYSTEM -B ( modification of vertical compaction )

The System B heat source (Analytic Technology, Redmond, WA, USA) was developed for use with a modified vertical condensation technique called the ‘continuous wave of condensation’ (Buchanan 1998), which was designed to simplify the vertical condensation technique. It is claimed by the manufacturer that the System B heat source allows sufficient heat for the apical GP to be softened and adapted to the irregularities of the intracanal anatomy. The technique is often used after preparation with nickel-titanium rotary files of greater taper. The heat source is an electric device that supplies heat to a plugger. Heat is applied at a prescribed temperature (200° C) for a short period of time as determined by the operator. By applying a constant source of heat to a prefitted gutta-percha cone, hydraulic pressure can be applied in one continuous motion for obturation

                                   REF: IEJ, 38, 218–222, 2005